It can aonly be good news. New music from legends is always good news. Nothing else to prove. Just music. I´m among the people who think she could truly have a big commercial comeback if she truly worked with new people. Kind of like what happened with #Beautiful or her Xmas album from 2010. She could even release easier-to-sing songs that are actually more radio and hit-friendly nowadays. Songs like "Royals" for example, which are catchy but also have quality and uniqueness (grammys included). It would be nothing for her to sing that.